During downconversion, image reject mixers reject unwanted sideband. Single sideband mixers do the same thing, but during an upconversion. IQ mixers permit sideband rejection while using the quadrature phases of the carrier in order to achieve additional information capacity. Marki's Image Reject, IQ, and Single Sideband Mixers rely on their quadrature hybrid couplers to provide superior amplitude and phase balance to these mixers. Additional information on specifications can be found on the available datasheet.